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Matrix of 10 × 10 addressed solid propellant microthrusters: Review of the technologies
Auteur(s)
Rossi, Carole
Briand, Danick
Dumonteuil, Maxime
Camps, Thierry
Pham, Phuong Quyên
de Rooij, Nicolaas F.
Date de parution
2006
In
Sensors and Actuators A: Physical, Elsevier, 2006/126/1/241-252
Résumé
An EC funded MicroPyros project has permitted to develop the technologies to fabricate, assemble and command solid propellant microthrusters arrays for thrusts of a few of milli Newtons The prototype built for space application has 100 individually addressed ∅ 1.5 mm × 1.5 mm thrusters on 576 mm<sup>2</sup>. Nozzles’ throats are 250 μm and 500 μm. This paper reviews the prototype structure and details the final processes for the fabrication and assembling. This paper presents also a new addressing technology based on polysilicon threshold elements used for the addressing and heating of each thruster in the array. With polysilicon threshold element, ignition success is of 100% with an input power of 250 mW using a zirconium perchlorate potassium (ZPP) material. Then, the combustion of a glycidyle azide polymer (GAP) is sustained in the chamber and generate thrusts in the range of 0.3–2.3 mN depending of the micronozzle dimension.
Identifiants
Type de publication
journal article
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